An identity-based signcryption on Lattice without trapdoor

Xianmin Wang, Yu Zhang, Brij Bhooshan Gupta, Hongfei Zhu*, Dongxi Liu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

20 引用 (Scopus)

摘要

Identity-based signcryption schemes based on large integer factorization and discrete logarithm problems were considered to be insecure for the quantum computer attack. Thus, choosing a quantum-resist platform and constructing secure schemes based on new hard assumptions are challenges. In this paper, we propose an alternative scheme — an identity-based signcryption on lattice, which does not need to rely on a trapdoor. Meanwhile, our scheme achieves IND-CCA2 and sUF-CMA security, and it is also secure against the current quantum algorithm attacks based on LWE problem for lattice. Furthermore, we demonstrate that the newly proposed scheme has much shorter secret key size, and higher speeds in signcryption and unsigncryption stages, compared with some exiting identity-based signcryption schemes.

源语言英语
页(从-至)282-293
页数12
期刊Journal of Universal Computer Science
25
3
出版状态已出版 - 2019
已对外发布

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Wang, X., Zhang, Y., Gupta, B. B., Zhu, H., & Liu, D. (2019). An identity-based signcryption on Lattice without trapdoor. Journal of Universal Computer Science, 25(3), 282-293.